Improve map charger markers to provide more information

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/request-a-feature/show-live-status-of-chargers-on-map/
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Right now the chargers are only grey icons and only if you click on them, the state of the charger and the power and number of stalls can be checked. It would be nice to see on the icon marker already, if it is free. Also the number of stalls and the speed would be nice.